Camera.java revision 98d615769af2b08bcddf02ee1b11f5288ec5cf92
1/* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.camera; 18 19import com.android.camera.ui.CameraPicker; 20import com.android.camera.ui.FaceView; 21import com.android.camera.ui.FocusRectangle; 22import com.android.camera.ui.IndicatorControl; 23import com.android.camera.ui.RotateImageView; 24import com.android.camera.ui.RotateLayout; 25import com.android.camera.ui.SharePopup; 26import com.android.camera.ui.ZoomPicker; 27 28import android.app.Activity; 29import android.content.BroadcastReceiver; 30import android.content.ContentProviderClient; 31import android.content.ContentResolver; 32import android.content.Context; 33import android.content.Intent; 34import android.content.IntentFilter; 35import android.content.SharedPreferences.Editor; 36import android.graphics.Bitmap; 37import android.graphics.Rect; 38import android.hardware.Camera.Area; 39import android.hardware.Camera.CameraInfo; 40import android.hardware.Camera.Face; 41import android.hardware.Camera.FaceDetectionListener; 42import android.hardware.Camera.Parameters; 43import android.hardware.Camera.PictureCallback; 44import android.hardware.Camera.Size; 45import android.location.Location; 46import android.location.LocationManager; 47import android.location.LocationProvider; 48import android.media.AudioManager; 49import android.media.CameraProfile; 50import android.media.ToneGenerator; 51import android.net.Uri; 52import android.os.Bundle; 53import android.os.Handler; 54import android.os.Looper; 55import android.os.Message; 56import android.os.MessageQueue; 57import android.os.SystemClock; 58import android.provider.MediaStore; 59import android.provider.Settings; 60import android.util.Log; 61import android.view.GestureDetector; 62import android.view.Gravity; 63import android.view.KeyEvent; 64import android.view.Menu; 65import android.view.MenuItem; 66import android.view.MenuItem.OnMenuItemClickListener; 67import android.view.MotionEvent; 68import android.view.OrientationEventListener; 69import android.view.SurfaceHolder; 70import android.view.SurfaceView; 71import android.view.View; 72import android.view.ViewGroup; 73import android.view.Window; 74import android.view.WindowManager; 75import android.view.animation.AnimationUtils; 76import android.widget.Button; 77import android.widget.RelativeLayout; 78import android.widget.Toast; 79 80import java.io.File; 81import java.io.FileNotFoundException; 82import java.io.FileOutputStream; 83import java.io.IOException; 84import java.io.OutputStream; 85import java.text.SimpleDateFormat; 86import java.util.ArrayList; 87import java.util.Collections; 88import java.util.Date; 89import java.util.List; 90 91/** The Camera activity which can preview and take pictures. */ 92public class Camera extends ActivityBase implements View.OnClickListener, 93 View.OnTouchListener, ShutterButton.OnShutterButtonListener, 94 SurfaceHolder.Callback, ModePicker.OnModeChangeListener, 95 FaceDetectionListener { 96 97 private static final String TAG = "camera"; 98 99 private static final String LAST_THUMB_FILENAME = "image_last_thumb"; 100 101 private static final int CROP_MSG = 1; 102 private static final int FIRST_TIME_INIT = 2; 103 private static final int RESTART_PREVIEW = 3; 104 private static final int CLEAR_SCREEN_DELAY = 4; 105 private static final int SET_CAMERA_PARAMETERS_WHEN_IDLE = 5; 106 private static final int CHECK_DISPLAY_ROTATION = 6; 107 private static final int RESET_TOUCH_FOCUS = 7; 108 private static final int DISMISS_TAP_TO_FOCUS_TOAST = 8; 109 110 // The subset of parameters we need to update in setCameraParameters(). 111 private static final int UPDATE_PARAM_INITIALIZE = 1; 112 private static final int UPDATE_PARAM_ZOOM = 2; 113 private static final int UPDATE_PARAM_PREFERENCE = 4; 114 private static final int UPDATE_PARAM_ALL = -1; 115 116 // When setCameraParametersWhenIdle() is called, we accumulate the subsets 117 // needed to be updated in mUpdateSet. 118 private int mUpdateSet; 119 120 // The brightness settings used when it is set to automatic in the system. 121 // The reason why it is set to 0.7 is just because 1.0 is too bright. 122 private static final float DEFAULT_CAMERA_BRIGHTNESS = 0.7f; 123 124 private static final int SCREEN_DELAY = 2 * 60 * 1000; 125 private static final int FOCUS_BEEP_VOLUME = 100; 126 127 private static final int ZOOM_STOPPED = 0; 128 private static final int ZOOM_START = 1; 129 private static final int ZOOM_STOPPING = 2; 130 131 private int mZoomState = ZOOM_STOPPED; 132 private boolean mSmoothZoomSupported = false; 133 private int mZoomValue; // The current zoom value. 134 private int mZoomMax; 135 private int mTargetZoomValue; 136 private ZoomPicker mZoomPicker; 137 138 private Parameters mParameters; 139 private Parameters mInitialParams; 140 141 private MyOrientationEventListener mOrientationListener; 142 // The degrees of the device rotated clockwise from its natural orientation. 143 private int mOrientation = OrientationEventListener.ORIENTATION_UNKNOWN; 144 // The orientation compensation for icons and thumbnails. Ex: if the value 145 // is 90, the UI components should be rotated 90 degrees counter-clockwise. 146 private int mOrientationCompensation = 0; 147 private ComboPreferences mPreferences; 148 149 private static final String sTempCropFilename = "crop-temp"; 150 151 private android.hardware.Camera mCameraDevice; 152 private ContentProviderClient mMediaProviderClient; 153 private SurfaceHolder mSurfaceHolder = null; 154 private ShutterButton mShutterButton; 155 private ToneGenerator mFocusToneGenerator; 156 private GestureDetector mPopupGestureDetector; 157 private boolean mOpenCameraFail = false; 158 private boolean mCameraDisabled = false; 159 160 private View mPreviewFrame; // Preview frame area. 161 private View mPreviewBorder; 162 private FocusRectangle mFocusRectangle; 163 private List<Area> mFocusArea; // focus area in driver format 164 private static final int RESET_TOUCH_FOCUS_DELAY = 3000; 165 166 // A popup window that contains a bigger thumbnail and a list of apps to share. 167 private SharePopup mSharePopup; 168 // The bitmap of the last captured picture thumbnail and the URI of the 169 // original picture. 170 private Thumbnail mThumbnail; 171 // An imageview showing showing the last captured picture thumbnail. 172 private RotateImageView mThumbnailView; 173 private ModePicker mModePicker; 174 private FaceView mFaceView; 175 176 // mCropValue and mSaveUri are used only if isImageCaptureIntent() is true. 177 private String mCropValue; 178 private Uri mSaveUri; 179 180 // GPS on-screen indicator 181 private View mGpsNoSignalView; 182 private View mGpsHasSignalView; 183 184 // front/back camera switch. 185 private CameraPicker mCameraPicker; 186 187 /** 188 * An unpublished intent flag requesting to return as soon as capturing 189 * is completed. 190 * 191 * TODO: consider publishing by moving into MediaStore. 192 */ 193 private final static String EXTRA_QUICK_CAPTURE = 194 "android.intent.extra.quickCapture"; 195 196 // The display rotation in degrees. This is only valid when mCameraState is 197 // not PREVIEW_STOPPED. 198 private int mDisplayRotation; 199 // The value for android.hardware.Camera.setDisplayOrientation. 200 private int mDisplayOrientation; 201 private boolean mPausing; 202 private boolean mFirstTimeInitialized; 203 private boolean mIsImageCaptureIntent; 204 private boolean mRecordLocation; 205 206 private static final int PREVIEW_STOPPED = 0; 207 private static final int IDLE = 1; // preview is active 208 private static final int FOCUSING = 2; 209 private static final int FOCUSING_SNAP_ON_FINISH = 3; 210 private static final int FOCUS_SUCCESS = 4; 211 private static final int FOCUS_FAIL = 5; 212 private static final int SNAPSHOT_IN_PROGRESS = 6; 213 private int mCameraState = PREVIEW_STOPPED; 214 215 private ContentResolver mContentResolver; 216 private boolean mDidRegister = false; 217 218 private final ArrayList<MenuItem> mGalleryItems = new ArrayList<MenuItem>(); 219 220 private LocationManager mLocationManager = null; 221 222 private final ShutterCallback mShutterCallback = new ShutterCallback(); 223 private final PostViewPictureCallback mPostViewPictureCallback = 224 new PostViewPictureCallback(); 225 private final RawPictureCallback mRawPictureCallback = 226 new RawPictureCallback(); 227 private final AutoFocusCallback mAutoFocusCallback = 228 new AutoFocusCallback(); 229 private final ZoomListener mZoomListener = new ZoomListener(); 230 private final CameraErrorCallback mErrorCallback = new CameraErrorCallback(); 231 232 private long mFocusStartTime; 233 private long mFocusCallbackTime; 234 private long mCaptureStartTime; 235 private long mShutterCallbackTime; 236 private long mPostViewPictureCallbackTime; 237 private long mRawPictureCallbackTime; 238 private long mJpegPictureCallbackTime; 239 private long mOnResumeTime; 240 private long mPicturesRemaining; 241 private byte[] mJpegImageData; 242 243 // These latency time are for the CameraLatency test. 244 public long mAutoFocusTime; 245 public long mShutterLag; 246 public long mShutterToPictureDisplayedTime; 247 public long mPictureDisplayedToJpegCallbackTime; 248 public long mJpegCallbackFinishTime; 249 250 // Focus mode. Options are pref_camera_focusmode_entryvalues. 251 private String mFocusMode; 252 private String mSceneMode; 253 private Toast mNotSelectableToast; 254 private Toast mNoShareToast; 255 256 private final Handler mHandler = new MainHandler(); 257 private IndicatorControl mIndicatorControl; 258 private PreferenceGroup mPreferenceGroup; 259 260 // multiple cameras support 261 private int mNumberOfCameras; 262 private int mCameraId; 263 private int mFrontCameraId; 264 private int mBackCameraId; 265 266 private boolean mQuickCapture; 267 268 /** 269 * This Handler is used to post message back onto the main thread of the 270 * application 271 */ 272 private class MainHandler extends Handler { 273 @Override 274 public void handleMessage(Message msg) { 275 switch (msg.what) { 276 case RESTART_PREVIEW: { 277 startPreview(); 278 if (mJpegPictureCallbackTime != 0) { 279 long now = System.currentTimeMillis(); 280 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 281 Log.v(TAG, "mJpegCallbackFinishTime = " 282 + mJpegCallbackFinishTime + "ms"); 283 mJpegPictureCallbackTime = 0; 284 } 285 break; 286 } 287 288 case CLEAR_SCREEN_DELAY: { 289 getWindow().clearFlags( 290 WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 291 break; 292 } 293 294 case FIRST_TIME_INIT: { 295 initializeFirstTime(); 296 break; 297 } 298 299 case SET_CAMERA_PARAMETERS_WHEN_IDLE: { 300 setCameraParametersWhenIdle(0); 301 break; 302 } 303 304 case CHECK_DISPLAY_ROTATION: { 305 // Restart the preview if display rotation has changed. 306 // Sometimes this happens when the device is held upside 307 // down and camera app is opened. Rotation animation will 308 // take some time and the rotation value we have got may be 309 // wrong. Framework does not have a callback for this now. 310 if (Util.getDisplayRotation(Camera.this) != mDisplayRotation 311 && isCameraIdle()) { 312 startPreview(); 313 } 314 if (SystemClock.uptimeMillis() - mOnResumeTime < 5000) { 315 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 316 } 317 break; 318 } 319 320 case RESET_TOUCH_FOCUS: { 321 cancelAutoFocus(); 322 startFaceDetection(); 323 break; 324 } 325 326 case DISMISS_TAP_TO_FOCUS_TOAST: { 327 View v = findViewById(R.id.tap_to_focus_prompt); 328 v.setVisibility(View.GONE); 329 v.setAnimation(AnimationUtils.loadAnimation(Camera.this, 330 R.anim.on_screen_hint_exit)); 331 break; 332 } 333 } 334 } 335 } 336 337 private void resetExposureCompensation() { 338 String value = mPreferences.getString(CameraSettings.KEY_EXPOSURE, 339 CameraSettings.EXPOSURE_DEFAULT_VALUE); 340 if (!CameraSettings.EXPOSURE_DEFAULT_VALUE.equals(value)) { 341 Editor editor = mPreferences.edit(); 342 editor.putString(CameraSettings.KEY_EXPOSURE, "0"); 343 editor.apply(); 344 if (mIndicatorControl != null) { 345 mIndicatorControl.reloadPreferences(); 346 } 347 } 348 } 349 350 private void keepMediaProviderInstance() { 351 // We want to keep a reference to MediaProvider in camera's lifecycle. 352 // TODO: Utilize mMediaProviderClient instance to replace 353 // ContentResolver calls. 354 if (mMediaProviderClient == null) { 355 mMediaProviderClient = getContentResolver() 356 .acquireContentProviderClient(MediaStore.AUTHORITY); 357 } 358 } 359 360 // Snapshots can only be taken after this is called. It should be called 361 // once only. We could have done these things in onCreate() but we want to 362 // make preview screen appear as soon as possible. 363 private void initializeFirstTime() { 364 if (mFirstTimeInitialized) return; 365 366 // Create orientation listenter. This should be done first because it 367 // takes some time to get first orientation. 368 mOrientationListener = new MyOrientationEventListener(Camera.this); 369 mOrientationListener.enable(); 370 371 // Initialize location sevice. 372 mLocationManager = (LocationManager) 373 getSystemService(Context.LOCATION_SERVICE); 374 mRecordLocation = RecordLocationPreference.get( 375 mPreferences, getContentResolver()); 376 initGpsOnScreenIndicator(); 377 if (mRecordLocation) startReceivingLocationUpdates(); 378 379 keepMediaProviderInstance(); 380 checkStorage(); 381 382 // Initialize last picture button. 383 mContentResolver = getContentResolver(); 384 if (!mIsImageCaptureIntent) { // no thumbnail in image capture intent 385 initThumbnailButton(); 386 } 387 388 // Initialize shutter button. 389 mShutterButton = (ShutterButton) findViewById(R.id.shutter_button); 390 mShutterButton.setOnShutterButtonListener(this); 391 mShutterButton.setVisibility(View.VISIBLE); 392 393 // Initialize focus UI. 394 mPreviewFrame = findViewById(R.id.camera_preview); 395 mPreviewFrame.setOnTouchListener(this); 396 mPreviewBorder = findViewById(R.id.preview_border); 397 // Set the length of focus rectangle according to preview frame size. 398 int len = Math.min(mPreviewFrame.getWidth(), mPreviewFrame.getHeight()) / 4; 399 ViewGroup.LayoutParams layout = mFocusRectangle.getLayoutParams(); 400 layout.width = len; 401 layout.height = len; 402 403 initializeScreenBrightness(); 404 installIntentFilter(); 405 initializeFocusTone(); 406 initializeZoom(); 407 startFaceDetection(); 408 showTapToFocusToastIfNeeded(); 409 mFirstTimeInitialized = true; 410 addIdleHandler(); 411 } 412 413 private void addIdleHandler() { 414 MessageQueue queue = Looper.myQueue(); 415 queue.addIdleHandler(new MessageQueue.IdleHandler() { 416 public boolean queueIdle() { 417 Storage.ensureOSXCompatible(); 418 return false; 419 } 420 }); 421 } 422 423 private void initThumbnailButton() { 424 mThumbnailView.setOnClickListener(this); 425 // Load the thumbnail from the disk. 426 mThumbnail = Thumbnail.loadFrom(new File(getFilesDir(), LAST_THUMB_FILENAME)); 427 updateThumbnailButton(); 428 } 429 430 private void updateThumbnailButton() { 431 // Update last image if URI is invalid and the storage is ready. 432 if ((mThumbnail == null || !Util.isUriValid(mThumbnail.getUri(), mContentResolver)) 433 && mPicturesRemaining >= 0) { 434 mThumbnail = Thumbnail.getLastImageThumbnail(mContentResolver); 435 } 436 if (mThumbnail != null) { 437 mThumbnailView.setBitmap(mThumbnail.getBitmap()); 438 } else { 439 mThumbnailView.setBitmap(null); 440 } 441 } 442 443 // If the activity is paused and resumed, this method will be called in 444 // onResume. 445 private void initializeSecondTime() { 446 // Start orientation listener as soon as possible because it takes 447 // some time to get first orientation. 448 mOrientationListener.enable(); 449 450 // Start location update if needed. 451 mRecordLocation = RecordLocationPreference.get( 452 mPreferences, getContentResolver()); 453 if (mRecordLocation) startReceivingLocationUpdates(); 454 455 installIntentFilter(); 456 initializeFocusTone(); 457 initializeZoom(); 458 startFaceDetection(); 459 keepMediaProviderInstance(); 460 checkStorage(); 461 462 if (!mIsImageCaptureIntent) { 463 updateThumbnailButton(); 464 mModePicker.setCurrentMode(ModePicker.MODE_CAMERA); 465 } 466 } 467 468 private void initializeZoom() { 469 if (!mParameters.isZoomSupported()) return; 470 471 mZoomMax = mParameters.getMaxZoom(); 472 mSmoothZoomSupported = mParameters.isSmoothZoomSupported(); 473 if (mZoomPicker != null) { 474 mZoomPicker.setZoomMax(mZoomMax); 475 mZoomPicker.setZoomIndex(mParameters.getZoom()); 476 mZoomPicker.setSmoothZoomSupported(mSmoothZoomSupported); 477 mZoomPicker.setOnZoomChangeListener( 478 new ZoomPicker.OnZoomChangedListener() { 479 // only for immediate zoom 480 @Override 481 public void onZoomValueChanged(int index) { 482 Camera.this.onZoomValueChanged(index); 483 } 484 485 // only for smooth zoom 486 @Override 487 public void onZoomStateChanged(int state) { 488 if (mPausing) return; 489 490 Log.v(TAG, "zoom picker state=" + state); 491 if (state == ZoomPicker.ZOOM_IN) { 492 Camera.this.onZoomValueChanged(mZoomMax); 493 } else if (state == ZoomPicker.ZOOM_OUT){ 494 Camera.this.onZoomValueChanged(0); 495 } else { 496 mTargetZoomValue = -1; 497 if (mZoomState == ZOOM_START) { 498 mZoomState = ZOOM_STOPPING; 499 mCameraDevice.stopSmoothZoom(); 500 } 501 } 502 } 503 }); 504 } 505 506 mCameraDevice.setZoomChangeListener(mZoomListener); 507 } 508 509 private void onZoomValueChanged(int index) { 510 // Not useful to change zoom value when the activity is paused. 511 if (mPausing) return; 512 513 if (mSmoothZoomSupported) { 514 if (mTargetZoomValue != index && mZoomState != ZOOM_STOPPED) { 515 mTargetZoomValue = index; 516 if (mZoomState == ZOOM_START) { 517 mZoomState = ZOOM_STOPPING; 518 mCameraDevice.stopSmoothZoom(); 519 } 520 } else if (mZoomState == ZOOM_STOPPED && mZoomValue != index) { 521 mTargetZoomValue = index; 522 mCameraDevice.startSmoothZoom(index); 523 mZoomState = ZOOM_START; 524 } 525 } else { 526 mZoomValue = index; 527 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 528 } 529 } 530 531 private void startFaceDetection() { 532 if (mParameters.getMaxNumDetectedFaces() > 0) { 533 mFaceView = (FaceView) findViewById(R.id.face_view); 534 mFaceView.setVisibility(View.VISIBLE); 535 mFaceView.setDisplayOrientation(mDisplayOrientation); 536 CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId]; 537 mFaceView.setMirror(info.facing == CameraInfo.CAMERA_FACING_FRONT); 538 mCameraDevice.setFaceDetectionListener(this); 539 mCameraDevice.startFaceDetection(); 540 } 541 } 542 543 private void stopFaceDetection() { 544 if (mParameters.getMaxNumDetectedFaces() > 0) { 545 mCameraDevice.setFaceDetectionListener(null); 546 mCameraDevice.stopFaceDetection(); 547 if (mFaceView != null) mFaceView.clearFaces(); 548 } 549 } 550 551 private class PopupGestureListener 552 extends GestureDetector.SimpleOnGestureListener { 553 @Override 554 public boolean onDown(MotionEvent e) { 555 // Check if the popup window is visible. 556 View popup = mIndicatorControl.getActiveSettingPopup(); 557 if (popup == null) return false; 558 559 560 // Let popup window, indicator control or preview frame handle the 561 // event by themselves. Dismiss the popup window if users touch on 562 // other areas. 563 if (!Util.pointInView(e.getX(), e.getY(), popup) 564 && !Util.pointInView(e.getX(), e.getY(), mIndicatorControl) 565 && !Util.pointInView(e.getX(), e.getY(), mPreviewFrame)) { 566 mIndicatorControl.dismissSettingPopup(); 567 // Let event fall through. 568 } 569 return false; 570 } 571 } 572 573 @Override 574 public boolean dispatchTouchEvent(MotionEvent m) { 575 // Check if the popup window should be dismissed first. 576 if (mPopupGestureDetector != null && mPopupGestureDetector.onTouchEvent(m)) { 577 return true; 578 } 579 580 return super.dispatchTouchEvent(m); 581 } 582 583 LocationListener [] mLocationListeners = new LocationListener[] { 584 new LocationListener(LocationManager.GPS_PROVIDER), 585 new LocationListener(LocationManager.NETWORK_PROVIDER) 586 }; 587 588 private final BroadcastReceiver mReceiver = new BroadcastReceiver() { 589 @Override 590 public void onReceive(Context context, Intent intent) { 591 String action = intent.getAction(); 592 if (action.equals(Intent.ACTION_MEDIA_MOUNTED) 593 || action.equals(Intent.ACTION_MEDIA_UNMOUNTED) 594 || action.equals(Intent.ACTION_MEDIA_CHECKING)) { 595 checkStorage(); 596 } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { 597 checkStorage(); 598 if (!mIsImageCaptureIntent) { 599 updateThumbnailButton(); 600 } 601 } 602 } 603 }; 604 605 private void initializeCameraPicker() { 606 mCameraPicker = (CameraPicker) findViewById(R.id.camera_picker); 607 if (mCameraPicker != null) { 608 mCameraPicker.setImageResource(R.drawable.camera_toggle); 609 ListPreference pref = mPreferenceGroup.findPreference( 610 CameraSettings.KEY_CAMERA_ID); 611 if (pref != null) { 612 mCameraPicker.initialize(pref); 613 mCameraPicker.setListener(new MyCameraPickerListener()); 614 } 615 } 616 } 617 618 private void initializeZoomPicker() { 619 View zoomIncrement = findViewById(R.id.zoom_increment); 620 View zoomDecrement = findViewById(R.id.zoom_decrement); 621 if (zoomIncrement != null && zoomDecrement != null && mParameters.isZoomSupported()) { 622 mZoomPicker = new ZoomPicker(this, zoomIncrement, zoomDecrement); 623 } 624 } 625 626 private void initGpsOnScreenIndicator() { 627 mGpsNoSignalView = findViewById(R.id.onscreen_gps_indicator_no_signal); 628 mGpsHasSignalView = findViewById(R.id.onscreen_gps_indicator_on); 629 } 630 631 private void showGpsOnScreenIndicator(boolean hasSignal) { 632 if (hasSignal) { 633 if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.GONE); 634 if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.VISIBLE); 635 } else { 636 if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.VISIBLE); 637 if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.GONE); 638 } 639 } 640 641 private void hideGpsOnScreenIndicator() { 642 if (mGpsNoSignalView != null) mGpsNoSignalView.setVisibility(View.GONE); 643 if (mGpsHasSignalView != null) mGpsHasSignalView.setVisibility(View.GONE); 644 } 645 646 private class LocationListener 647 implements android.location.LocationListener { 648 Location mLastLocation; 649 boolean mValid = false; 650 String mProvider; 651 652 public LocationListener(String provider) { 653 mProvider = provider; 654 mLastLocation = new Location(mProvider); 655 } 656 657 public void onLocationChanged(Location newLocation) { 658 if (newLocation.getLatitude() == 0.0 659 && newLocation.getLongitude() == 0.0) { 660 // Hack to filter out 0.0,0.0 locations 661 return; 662 } 663 // If GPS is available before start camera, we won't get status 664 // update so update GPS indicator when we receive data. 665 if (mRecordLocation 666 && LocationManager.GPS_PROVIDER.equals(mProvider)) { 667 showGpsOnScreenIndicator(true); 668 } 669 if (!mValid) { 670 Log.d(TAG, "Got first location."); 671 } 672 mLastLocation.set(newLocation); 673 mValid = true; 674 } 675 676 public void onProviderEnabled(String provider) { 677 } 678 679 public void onProviderDisabled(String provider) { 680 mValid = false; 681 } 682 683 public void onStatusChanged( 684 String provider, int status, Bundle extras) { 685 switch(status) { 686 case LocationProvider.OUT_OF_SERVICE: 687 case LocationProvider.TEMPORARILY_UNAVAILABLE: { 688 mValid = false; 689 if (mRecordLocation && 690 LocationManager.GPS_PROVIDER.equals(provider)) { 691 showGpsOnScreenIndicator(false); 692 } 693 break; 694 } 695 } 696 } 697 698 public Location current() { 699 return mValid ? mLastLocation : null; 700 } 701 } 702 703 private final class ShutterCallback 704 implements android.hardware.Camera.ShutterCallback { 705 public void onShutter() { 706 mShutterCallbackTime = System.currentTimeMillis(); 707 mShutterLag = mShutterCallbackTime - mCaptureStartTime; 708 Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); 709 updateFocusUI(); 710 } 711 } 712 713 private final class PostViewPictureCallback implements PictureCallback { 714 public void onPictureTaken( 715 byte [] data, android.hardware.Camera camera) { 716 mPostViewPictureCallbackTime = System.currentTimeMillis(); 717 Log.v(TAG, "mShutterToPostViewCallbackTime = " 718 + (mPostViewPictureCallbackTime - mShutterCallbackTime) 719 + "ms"); 720 } 721 } 722 723 private final class RawPictureCallback implements PictureCallback { 724 public void onPictureTaken( 725 byte [] rawData, android.hardware.Camera camera) { 726 mRawPictureCallbackTime = System.currentTimeMillis(); 727 Log.v(TAG, "mShutterToRawCallbackTime = " 728 + (mRawPictureCallbackTime - mShutterCallbackTime) + "ms"); 729 } 730 } 731 732 private final class JpegPictureCallback implements PictureCallback { 733 Location mLocation; 734 735 public JpegPictureCallback(Location loc) { 736 mLocation = loc; 737 } 738 739 public void onPictureTaken( 740 final byte [] jpegData, final android.hardware.Camera camera) { 741 if (mPausing) { 742 return; 743 } 744 745 mJpegPictureCallbackTime = System.currentTimeMillis(); 746 // If postview callback has arrived, the captured image is displayed 747 // in postview callback. If not, the captured image is displayed in 748 // raw picture callback. 749 if (mPostViewPictureCallbackTime != 0) { 750 mShutterToPictureDisplayedTime = 751 mPostViewPictureCallbackTime - mShutterCallbackTime; 752 mPictureDisplayedToJpegCallbackTime = 753 mJpegPictureCallbackTime - mPostViewPictureCallbackTime; 754 } else { 755 mShutterToPictureDisplayedTime = 756 mRawPictureCallbackTime - mShutterCallbackTime; 757 mPictureDisplayedToJpegCallbackTime = 758 mJpegPictureCallbackTime - mRawPictureCallbackTime; 759 } 760 Log.v(TAG, "mPictureDisplayedToJpegCallbackTime = " 761 + mPictureDisplayedToJpegCallbackTime + "ms"); 762 763 if (!mIsImageCaptureIntent) { 764 enableCameraControls(true); 765 766 // We want to show the taken picture for a while, so we wait 767 // for at least 1.2 second before restarting the preview. 768 long delay = 1200 - mPictureDisplayedToJpegCallbackTime; 769 if (delay < 0) { 770 startPreview(); 771 } else { 772 mHandler.sendEmptyMessageDelayed(RESTART_PREVIEW, delay); 773 } 774 } 775 storeImage(jpegData, camera, mLocation); 776 777 // Check this in advance of each shot so we don't add to shutter 778 // latency. It's true that someone else could write to the SD card in 779 // the mean time and fill it, but that could have happened between the 780 // shutter press and saving the JPEG too. 781 checkStorage(); 782 783 if (!mHandler.hasMessages(RESTART_PREVIEW)) { 784 long now = System.currentTimeMillis(); 785 mJpegCallbackFinishTime = now - mJpegPictureCallbackTime; 786 Log.v(TAG, "mJpegCallbackFinishTime = " 787 + mJpegCallbackFinishTime + "ms"); 788 mJpegPictureCallbackTime = 0; 789 } 790 } 791 } 792 793 private final class AutoFocusCallback 794 implements android.hardware.Camera.AutoFocusCallback { 795 public void onAutoFocus( 796 boolean focused, android.hardware.Camera camera) { 797 mFocusCallbackTime = System.currentTimeMillis(); 798 mAutoFocusTime = mFocusCallbackTime - mFocusStartTime; 799 Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); 800 if (mCameraState == FOCUSING_SNAP_ON_FINISH) { 801 // Take the picture no matter focus succeeds or fails. No need 802 // to play the AF sound if we're about to play the shutter 803 // sound. 804 if (focused) { 805 mCameraState = FOCUS_SUCCESS; 806 } else { 807 mCameraState = FOCUS_FAIL; 808 } 809 updateFocusUI(); 810 capture(); 811 } else if (mCameraState == FOCUSING) { 812 // This happens when (1) user is half-pressing the focus key or 813 // (2) touch focus is triggered. Play the focus tone. Do not 814 // take the picture now. 815 if (focused) { 816 mCameraState = FOCUS_SUCCESS; 817 if (mFocusToneGenerator != null) { 818 mFocusToneGenerator.startTone(ToneGenerator.TONE_PROP_BEEP2); 819 } 820 } else { 821 mCameraState = FOCUS_FAIL; 822 } 823 updateFocusUI(); 824 enableCameraControls(true); 825 // If this is triggered by touch focus, cancel focus after a 826 // while. 827 if (mFocusArea != null) { 828 mHandler.sendEmptyMessageDelayed(RESET_TOUCH_FOCUS, RESET_TOUCH_FOCUS_DELAY); 829 } 830 } else if (mCameraState == IDLE) { 831 // User has released the focus key before focus completes. 832 // Do nothing. 833 } 834 835 } 836 } 837 838 private final class ZoomListener 839 implements android.hardware.Camera.OnZoomChangeListener { 840 @Override 841 public void onZoomChange( 842 int value, boolean stopped, android.hardware.Camera camera) { 843 Log.v(TAG, "Zoom changed: value=" + value + ". stopped="+ stopped); 844 mZoomValue = value; 845 846 // Update the UI when we get zoom value. 847 if (mZoomPicker != null) mZoomPicker.setZoomIndex(value); 848 849 // Keep mParameters up to date. We do not getParameter again in 850 // takePicture. If we do not do this, wrong zoom value will be set. 851 mParameters.setZoom(value); 852 853 if (stopped && mZoomState != ZOOM_STOPPED) { 854 if (mTargetZoomValue != -1 && value != mTargetZoomValue) { 855 mCameraDevice.startSmoothZoom(mTargetZoomValue); 856 mZoomState = ZOOM_START; 857 } else { 858 mZoomState = ZOOM_STOPPED; 859 } 860 } 861 } 862 } 863 864 public void storeImage(final byte[] data, 865 android.hardware.Camera camera, Location loc) { 866 if (!mIsImageCaptureIntent) { 867 long dateTaken = System.currentTimeMillis(); 868 String title = createName(dateTaken); 869 int orientation = Exif.getOrientation(data); 870 Uri uri = Storage.addImage(mContentResolver, title, dateTaken, 871 loc, orientation, data); 872 if (uri != null) { 873 // Create a thumbnail whose size is smaller than half of the surface view. 874 int ratio = (int) Math.ceil((double) mParameters.getPictureSize().width 875 / (mPreviewFrame.getWidth() / 2)); 876 int inSampleSize = Util.nextPowerOf2(ratio); 877 mThumbnail = Thumbnail.createThumbnail(data, orientation, inSampleSize, uri); 878 if (mThumbnail != null) { 879 mThumbnailView.setBitmap(mThumbnail.getBitmap()); 880 } 881 882 sendBroadcast(new Intent(android.hardware.Camera.ACTION_NEW_PICTURE, uri)); 883 // Keep compatibility 884 sendBroadcast(new Intent("com.android.camera.NEW_PICTURE", uri)); 885 } 886 } else { 887 mJpegImageData = data; 888 if (!mQuickCapture) { 889 showPostCaptureAlert(); 890 } else { 891 doAttach(); 892 } 893 } 894 } 895 896 private void capture() { 897 // If we are already in the middle of taking a snapshot then ignore. 898 if (mPausing || mCameraState == SNAPSHOT_IN_PROGRESS || mCameraDevice == null) { 899 return; 900 } 901 mCaptureStartTime = System.currentTimeMillis(); 902 mPostViewPictureCallbackTime = 0; 903 enableCameraControls(false); 904 mJpegImageData = null; 905 906 // See android.hardware.Camera.Parameters.setRotation for 907 // documentation. 908 int rotation = 0; 909 if (mOrientation != OrientationEventListener.ORIENTATION_UNKNOWN) { 910 CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId]; 911 if (info.facing == CameraInfo.CAMERA_FACING_FRONT) { 912 rotation = (info.orientation - mOrientation + 360) % 360; 913 } else { // back-facing camera 914 rotation = (info.orientation + mOrientation) % 360; 915 } 916 } 917 mParameters.setRotation(rotation); 918 919 // Clear previous GPS location from the parameters. 920 mParameters.removeGpsData(); 921 922 // We always encode GpsTimeStamp 923 mParameters.setGpsTimestamp(System.currentTimeMillis() / 1000); 924 925 // Set GPS location. 926 Location loc = mRecordLocation ? getCurrentLocation() : null; 927 if (loc != null) { 928 double lat = loc.getLatitude(); 929 double lon = loc.getLongitude(); 930 boolean hasLatLon = (lat != 0.0d) || (lon != 0.0d); 931 932 if (hasLatLon) { 933 Log.d(TAG, "Set gps location"); 934 mParameters.setGpsLatitude(lat); 935 mParameters.setGpsLongitude(lon); 936 mParameters.setGpsProcessingMethod(loc.getProvider().toUpperCase()); 937 if (loc.hasAltitude()) { 938 mParameters.setGpsAltitude(loc.getAltitude()); 939 } else { 940 // for NETWORK_PROVIDER location provider, we may have 941 // no altitude information, but the driver needs it, so 942 // we fake one. 943 mParameters.setGpsAltitude(0); 944 } 945 if (loc.getTime() != 0) { 946 // Location.getTime() is UTC in milliseconds. 947 // gps-timestamp is UTC in seconds. 948 long utcTimeSeconds = loc.getTime() / 1000; 949 mParameters.setGpsTimestamp(utcTimeSeconds); 950 } 951 } else { 952 loc = null; 953 } 954 } 955 956 mCameraDevice.setParameters(mParameters); 957 958 mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, 959 mPostViewPictureCallback, new JpegPictureCallback(loc)); 960 mCameraState = SNAPSHOT_IN_PROGRESS; 961 mHandler.removeMessages(RESET_TOUCH_FOCUS); 962 } 963 964 private boolean saveDataToFile(String filePath, byte[] data) { 965 FileOutputStream f = null; 966 try { 967 f = new FileOutputStream(filePath); 968 f.write(data); 969 } catch (IOException e) { 970 return false; 971 } finally { 972 Util.closeSilently(f); 973 } 974 return true; 975 } 976 977 private String createName(long dateTaken) { 978 Date date = new Date(dateTaken); 979 SimpleDateFormat dateFormat = new SimpleDateFormat( 980 getString(R.string.image_file_name_format)); 981 982 return dateFormat.format(date); 983 } 984 985 @Override 986 public void onCreate(Bundle icicle) { 987 super.onCreate(icicle); 988 989 mIsImageCaptureIntent = isImageCaptureIntent(); 990 if (mIsImageCaptureIntent) { 991 setContentView(R.layout.camera_attach); 992 } else { 993 setContentView(R.layout.camera); 994 } 995 mFocusRectangle = (FocusRectangle) findViewById(R.id.focus_rectangle); 996 mThumbnailView = (RotateImageView) findViewById(R.id.thumbnail); 997 998 mPreferences = new ComboPreferences(this); 999 CameraSettings.upgradeGlobalPreferences(mPreferences.getGlobal()); 1000 1001 mCameraId = CameraSettings.readPreferredCameraId(mPreferences); 1002 1003 // Testing purpose. Launch a specific camera through the intent extras. 1004 int intentCameraId = Util.getCameraFacingIntentExtras(this); 1005 if (intentCameraId != -1) { 1006 mCameraId = intentCameraId; 1007 } 1008 1009 mPreferences.setLocalId(this, mCameraId); 1010 CameraSettings.upgradeLocalPreferences(mPreferences.getLocal()); 1011 1012 mNumberOfCameras = CameraHolder.instance().getNumberOfCameras(); 1013 mQuickCapture = getIntent().getBooleanExtra(EXTRA_QUICK_CAPTURE, false); 1014 1015 // we need to reset exposure for the preview 1016 resetExposureCompensation(); 1017 1018 /* 1019 * To reduce startup time, we start the preview in another thread. 1020 * We make sure the preview is started at the end of onCreate. 1021 */ 1022 Thread startPreviewThread = new Thread(new Runnable() { 1023 public void run() { 1024 try { 1025 mCameraDevice = Util.openCamera(Camera.this, mCameraId); 1026 mInitialParams = mCameraDevice.getParameters(); 1027 startPreview(); 1028 } catch (CameraHardwareException e) { 1029 mOpenCameraFail = true; 1030 } catch (CameraDisabledException e) { 1031 mCameraDisabled = true; 1032 } 1033 } 1034 }); 1035 startPreviewThread.start(); 1036 1037 // don't set mSurfaceHolder here. We have it set ONLY within 1038 // surfaceChanged / surfaceDestroyed, other parts of the code 1039 // assume that when it is set, the surface is also set. 1040 SurfaceView preview = (SurfaceView) findViewById(R.id.camera_preview); 1041 SurfaceHolder holder = preview.getHolder(); 1042 holder.addCallback(this); 1043 holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 1044 1045 if (mIsImageCaptureIntent) { 1046 setupCaptureParams(); 1047 1048 findViewById(R.id.review_control).setVisibility(View.VISIBLE); 1049 findViewById(R.id.btn_cancel).setOnClickListener(this); 1050 findViewById(R.id.btn_retake).setOnClickListener(this); 1051 findViewById(R.id.btn_done).setOnClickListener(this); 1052 } else { 1053 mModePicker = (ModePicker) findViewById(R.id.mode_picker); 1054 mModePicker.setVisibility(View.VISIBLE); 1055 mModePicker.setOnModeChangeListener(this); 1056 mModePicker.setCurrentMode(ModePicker.MODE_CAMERA); 1057 } 1058 1059 // Make sure preview is started. 1060 try { 1061 startPreviewThread.join(); 1062 if (mOpenCameraFail) { 1063 Util.showErrorAndFinish(this, R.string.cannot_connect_camera); 1064 return; 1065 } else if (mCameraDisabled) { 1066 Util.showErrorAndFinish(this, R.string.camera_disabled); 1067 return; 1068 } 1069 } catch (InterruptedException ex) { 1070 // ignore 1071 } 1072 1073 mBackCameraId = CameraHolder.instance().getBackCameraId(); 1074 mFrontCameraId = CameraHolder.instance().getFrontCameraId(); 1075 1076 // Do this after starting preview because it depends on camera 1077 // parameters. 1078 initializeIndicatorControl(); 1079 initializeZoomPicker(); 1080 initializeCameraPicker(); 1081 } 1082 1083 private void overrideCameraSettings(final String flashMode, 1084 final String whiteBalance, final String focusMode) { 1085 if (mIndicatorControl != null) { 1086 mIndicatorControl.overrideSettings( 1087 CameraSettings.KEY_FLASH_MODE, flashMode, 1088 CameraSettings.KEY_WHITE_BALANCE, whiteBalance, 1089 CameraSettings.KEY_FOCUS_MODE, focusMode); 1090 } 1091 } 1092 1093 private void updateSceneModeUI() { 1094 // If scene mode is set, we cannot set flash mode, white balance, and 1095 // focus mode, instead, we read it from driver 1096 if (!Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 1097 overrideCameraSettings(mParameters.getFlashMode(), 1098 mParameters.getWhiteBalance(), mParameters.getFocusMode()); 1099 } else { 1100 overrideCameraSettings(null, null, null); 1101 } 1102 } 1103 1104 private void loadCameraPreferences() { 1105 CameraSettings settings = new CameraSettings(this, mInitialParams, 1106 mCameraId, CameraHolder.instance().getCameraInfo()); 1107 mPreferenceGroup = settings.getPreferenceGroup(R.xml.camera_preferences); 1108 } 1109 1110 private void initializeIndicatorControl() { 1111 // setting the indicator buttons. 1112 mIndicatorControl = (IndicatorControl) findViewById(R.id.indicator_control); 1113 if (mIndicatorControl == null) return; 1114 loadCameraPreferences(); 1115 final String[] SETTING_KEYS, OTHER_SETTING_KEYS; 1116 if (Util.isTabletUI()) { 1117 SETTING_KEYS = new String[] { 1118 CameraSettings.KEY_FLASH_MODE, 1119 CameraSettings.KEY_WHITE_BALANCE}; 1120 OTHER_SETTING_KEYS = new String[] { 1121 CameraSettings.KEY_SCENE_MODE, 1122 CameraSettings.KEY_RECORD_LOCATION, 1123 CameraSettings.KEY_FOCUS_MODE, 1124 CameraSettings.KEY_EXPOSURE, 1125 CameraSettings.KEY_PICTURE_SIZE}; 1126 } else { 1127 SETTING_KEYS = new String[] { 1128 CameraSettings.KEY_FLASH_MODE, 1129 CameraSettings.KEY_WHITE_BALANCE}; 1130 OTHER_SETTING_KEYS = new String[] { 1131 CameraSettings.KEY_FOCUS_MODE, 1132 CameraSettings.KEY_EXPOSURE, 1133 CameraSettings.KEY_SCENE_MODE, 1134 CameraSettings.KEY_PICTURE_SIZE, 1135 CameraSettings.KEY_RECORD_LOCATION}; 1136 } 1137 mIndicatorControl.initialize(this, mPreferenceGroup, SETTING_KEYS, 1138 OTHER_SETTING_KEYS); 1139 mIndicatorControl.setListener(new MyIndicatorControlListener()); 1140 } 1141 1142 private boolean collapseCameraControls() { 1143 if (mIndicatorControl != null && mIndicatorControl.dismissSettingPopup()) { 1144 return true; 1145 } 1146 return false; 1147 } 1148 1149 private void enableCameraControls(boolean enable) { 1150 if (mIndicatorControl != null) mIndicatorControl.setEnabled(enable); 1151 if (mCameraPicker != null) mCameraPicker.setEnabled(enable); 1152 if (mZoomPicker != null) mZoomPicker.setEnabled(enable); 1153 if (mModePicker != null) mModePicker.setEnabled(enable); 1154 } 1155 1156 public static int roundOrientation(int orientation) { 1157 return ((orientation + 45) / 90 * 90) % 360; 1158 } 1159 1160 private class MyOrientationEventListener 1161 extends OrientationEventListener { 1162 public MyOrientationEventListener(Context context) { 1163 super(context); 1164 } 1165 1166 @Override 1167 public void onOrientationChanged(int orientation) { 1168 // We keep the last known orientation. So if the user first orient 1169 // the camera then point the camera to floor or sky, we still have 1170 // the correct orientation. 1171 if (orientation == ORIENTATION_UNKNOWN) return; 1172 mOrientation = roundOrientation(orientation); 1173 // When the screen is unlocked, display rotation may change. Always 1174 // calculate the up-to-date orientationCompensation. 1175 int orientationCompensation = mOrientation 1176 + Util.getDisplayRotation(Camera.this); 1177 if (mOrientationCompensation != orientationCompensation) { 1178 mOrientationCompensation = orientationCompensation; 1179 setOrientationIndicator(mOrientationCompensation); 1180 } 1181 } 1182 } 1183 1184 private void setOrientationIndicator(int degree) { 1185 if (mThumbnailView != null) mThumbnailView.setDegree(degree); 1186 if (mModePicker != null) mModePicker.setDegree(degree); 1187 if (mSharePopup != null) mSharePopup.setOrientation(degree); 1188 if (mIndicatorControl != null) mIndicatorControl.setDegree(degree); 1189 if (mCameraPicker != null) mCameraPicker.setDegree(degree); 1190 } 1191 1192 @Override 1193 public void onStop() { 1194 super.onStop(); 1195 if (mMediaProviderClient != null) { 1196 mMediaProviderClient.release(); 1197 mMediaProviderClient = null; 1198 } 1199 } 1200 1201 private void checkStorage() { 1202 mPicturesRemaining = Storage.getAvailableSpace(); 1203 if (mPicturesRemaining > 0) { 1204 mPicturesRemaining /= 1500000; 1205 } 1206 updateStorageHint(); 1207 } 1208 1209 @Override 1210 public void onClick(View v) { 1211 switch (v.getId()) { 1212 case R.id.thumbnail: 1213 if (isCameraIdle() && mThumbnail != null) { 1214 showSharePopup(); 1215 } 1216 break; 1217 case R.id.btn_retake: 1218 hidePostCaptureAlert(); 1219 startPreview(); 1220 break; 1221 case R.id.btn_done: 1222 doAttach(); 1223 break; 1224 case R.id.btn_cancel: 1225 doCancel(); 1226 break; 1227 } 1228 } 1229 1230 private void doAttach() { 1231 if (mPausing) { 1232 return; 1233 } 1234 1235 byte[] data = mJpegImageData; 1236 1237 if (mCropValue == null) { 1238 // First handle the no crop case -- just return the value. If the 1239 // caller specifies a "save uri" then write the data to it's 1240 // stream. Otherwise, pass back a scaled down version of the bitmap 1241 // directly in the extras. 1242 if (mSaveUri != null) { 1243 OutputStream outputStream = null; 1244 try { 1245 outputStream = mContentResolver.openOutputStream(mSaveUri); 1246 outputStream.write(data); 1247 outputStream.close(); 1248 1249 setResultEx(RESULT_OK); 1250 finish(); 1251 } catch (IOException ex) { 1252 // ignore exception 1253 } finally { 1254 Util.closeSilently(outputStream); 1255 } 1256 } else { 1257 int orientation = Exif.getOrientation(data); 1258 Bitmap bitmap = Util.makeBitmap(data, 50 * 1024); 1259 bitmap = Util.rotate(bitmap, orientation); 1260 setResultEx(RESULT_OK, 1261 new Intent("inline-data").putExtra("data", bitmap)); 1262 finish(); 1263 } 1264 } else { 1265 // Save the image to a temp file and invoke the cropper 1266 Uri tempUri = null; 1267 FileOutputStream tempStream = null; 1268 try { 1269 File path = getFileStreamPath(sTempCropFilename); 1270 path.delete(); 1271 tempStream = openFileOutput(sTempCropFilename, 0); 1272 tempStream.write(data); 1273 tempStream.close(); 1274 tempUri = Uri.fromFile(path); 1275 } catch (FileNotFoundException ex) { 1276 setResultEx(Activity.RESULT_CANCELED); 1277 finish(); 1278 return; 1279 } catch (IOException ex) { 1280 setResultEx(Activity.RESULT_CANCELED); 1281 finish(); 1282 return; 1283 } finally { 1284 Util.closeSilently(tempStream); 1285 } 1286 1287 Bundle newExtras = new Bundle(); 1288 if (mCropValue.equals("circle")) { 1289 newExtras.putString("circleCrop", "true"); 1290 } 1291 if (mSaveUri != null) { 1292 newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, mSaveUri); 1293 } else { 1294 newExtras.putBoolean("return-data", true); 1295 } 1296 1297 Intent cropIntent = new Intent("com.android.camera.action.CROP"); 1298 1299 cropIntent.setData(tempUri); 1300 cropIntent.putExtras(newExtras); 1301 1302 startActivityForResult(cropIntent, CROP_MSG); 1303 } 1304 } 1305 1306 private void doCancel() { 1307 setResultEx(RESULT_CANCELED, new Intent()); 1308 finish(); 1309 } 1310 1311 public void onShutterButtonFocus(ShutterButton button, boolean pressed) { 1312 if (mPausing) { 1313 return; 1314 } 1315 switch (button.getId()) { 1316 case R.id.shutter_button: 1317 doFocus(pressed); 1318 break; 1319 } 1320 } 1321 1322 public void onShutterButtonClick(ShutterButton button) { 1323 if (mPausing) { 1324 return; 1325 } 1326 switch (button.getId()) { 1327 case R.id.shutter_button: 1328 doSnap(); 1329 break; 1330 } 1331 } 1332 1333 private OnScreenHint mStorageHint; 1334 1335 private void updateStorageHint() { 1336 String noStorageText = null; 1337 1338 if (mPicturesRemaining == Storage.UNAVAILABLE) { 1339 noStorageText = getString(R.string.no_storage); 1340 } else if (mPicturesRemaining == Storage.PREPARING) { 1341 noStorageText = getString(R.string.preparing_sd); 1342 } else if (mPicturesRemaining == Storage.UNKNOWN_SIZE) { 1343 noStorageText = getString(R.string.access_sd_fail); 1344 } else if (mPicturesRemaining < 1L) { 1345 noStorageText = getString(R.string.not_enough_space); 1346 } 1347 1348 if (noStorageText != null) { 1349 if (mStorageHint == null) { 1350 mStorageHint = OnScreenHint.makeText(this, noStorageText); 1351 } else { 1352 mStorageHint.setText(noStorageText); 1353 } 1354 mStorageHint.show(); 1355 } else if (mStorageHint != null) { 1356 mStorageHint.cancel(); 1357 mStorageHint = null; 1358 } 1359 } 1360 1361 private void installIntentFilter() { 1362 // install an intent filter to receive SD card related events. 1363 IntentFilter intentFilter = 1364 new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); 1365 intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); 1366 intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); 1367 intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); 1368 intentFilter.addDataScheme("file"); 1369 registerReceiver(mReceiver, intentFilter); 1370 mDidRegister = true; 1371 } 1372 1373 private void initializeFocusTone() { 1374 // Initialize focus tone generator. 1375 try { 1376 mFocusToneGenerator = new ToneGenerator( 1377 AudioManager.STREAM_SYSTEM, FOCUS_BEEP_VOLUME); 1378 } catch (Throwable ex) { 1379 Log.w(TAG, "Exception caught while creating tone generator: ", ex); 1380 mFocusToneGenerator = null; 1381 } 1382 } 1383 1384 private void initializeScreenBrightness() { 1385 Window win = getWindow(); 1386 // Overright the brightness settings if it is automatic 1387 int mode = Settings.System.getInt( 1388 getContentResolver(), 1389 Settings.System.SCREEN_BRIGHTNESS_MODE, 1390 Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL); 1391 if (mode == Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC) { 1392 WindowManager.LayoutParams winParams = win.getAttributes(); 1393 winParams.screenBrightness = DEFAULT_CAMERA_BRIGHTNESS; 1394 win.setAttributes(winParams); 1395 } 1396 } 1397 1398 @Override 1399 protected void onResume() { 1400 super.onResume(); 1401 mPausing = false; 1402 if (mOpenCameraFail || mCameraDisabled) return; 1403 1404 mJpegPictureCallbackTime = 0; 1405 mZoomValue = 0; 1406 1407 // Start the preview if it is not started. 1408 if (mCameraState == PREVIEW_STOPPED) { 1409 try { 1410 mCameraDevice = Util.openCamera(this, mCameraId); 1411 mInitialParams = mCameraDevice.getParameters(); 1412 resetExposureCompensation(); 1413 startPreview(); 1414 } catch(CameraHardwareException e) { 1415 Util.showErrorAndFinish(this, R.string.cannot_connect_camera); 1416 return; 1417 } catch(CameraDisabledException e) { 1418 Util.showErrorAndFinish(this, R.string.camera_disabled); 1419 return; 1420 } 1421 } 1422 1423 if (mSurfaceHolder != null) { 1424 // If first time initialization is not finished, put it in the 1425 // message queue. 1426 if (!mFirstTimeInitialized) { 1427 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1428 } else { 1429 initializeSecondTime(); 1430 } 1431 } 1432 keepScreenOnAwhile(); 1433 1434 if (mCameraState == IDLE) { 1435 mOnResumeTime = SystemClock.uptimeMillis(); 1436 mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); 1437 } 1438 } 1439 1440 @Override 1441 protected void onPause() { 1442 mPausing = true; 1443 stopPreview(); 1444 // Close the camera now because other activities may need to use it. 1445 closeCamera(); 1446 resetScreenOn(); 1447 collapseCameraControls(); 1448 1449 if (mFirstTimeInitialized) { 1450 mOrientationListener.disable(); 1451 if (!mIsImageCaptureIntent) { 1452 if (mThumbnail != null) { 1453 mThumbnail.saveTo(new File(getFilesDir(), LAST_THUMB_FILENAME)); 1454 } 1455 } 1456 hidePostCaptureAlert(); 1457 } 1458 1459 if (mSharePopup != null) mSharePopup.dismiss(); 1460 1461 if (mDidRegister) { 1462 unregisterReceiver(mReceiver); 1463 mDidRegister = false; 1464 } 1465 stopReceivingLocationUpdates(); 1466 1467 if (mFocusToneGenerator != null) { 1468 mFocusToneGenerator.release(); 1469 mFocusToneGenerator = null; 1470 } 1471 1472 if (mStorageHint != null) { 1473 mStorageHint.cancel(); 1474 mStorageHint = null; 1475 } 1476 1477 // If we are in an image capture intent and has taken 1478 // a picture, we just clear it in onPause. 1479 mJpegImageData = null; 1480 1481 // Remove the messages in the event queue. 1482 mHandler.removeMessages(RESTART_PREVIEW); 1483 mHandler.removeMessages(FIRST_TIME_INIT); 1484 mHandler.removeMessages(CHECK_DISPLAY_ROTATION); 1485 mHandler.removeMessages(RESET_TOUCH_FOCUS); 1486 1487 super.onPause(); 1488 } 1489 1490 @Override 1491 protected void onActivityResult( 1492 int requestCode, int resultCode, Intent data) { 1493 switch (requestCode) { 1494 case CROP_MSG: { 1495 Intent intent = new Intent(); 1496 if (data != null) { 1497 Bundle extras = data.getExtras(); 1498 if (extras != null) { 1499 intent.putExtras(extras); 1500 } 1501 } 1502 setResultEx(resultCode, intent); 1503 finish(); 1504 1505 File path = getFileStreamPath(sTempCropFilename); 1506 path.delete(); 1507 1508 break; 1509 } 1510 } 1511 } 1512 1513 private boolean canTakePicture() { 1514 return isCameraIdle() && (mPicturesRemaining > 0); 1515 } 1516 1517 private void autoFocus() { 1518 Log.v(TAG, "Start autofocus."); 1519 mFocusStartTime = System.currentTimeMillis(); 1520 mCameraDevice.autoFocus(mAutoFocusCallback); 1521 mCameraState = FOCUSING; 1522 enableCameraControls(false); 1523 updateFocusUI(); 1524 mHandler.removeMessages(RESET_TOUCH_FOCUS); 1525 } 1526 1527 private void cancelAutoFocus() { 1528 Log.v(TAG, "Cancel autofocus."); 1529 mCameraDevice.cancelAutoFocus(); 1530 mCameraState = IDLE; 1531 enableCameraControls(true); 1532 resetTouchFocus(); 1533 setCameraParameters(UPDATE_PARAM_PREFERENCE); 1534 updateFocusUI(); 1535 mHandler.removeMessages(RESET_TOUCH_FOCUS); 1536 } 1537 1538 private void updateFocusUI() { 1539 // Do not show focus rectangle if there is any face rectangle. 1540 if (mFaceView != null && mFaceView.faceExists()) return; 1541 1542 if (mCameraState == FOCUSING || mCameraState == FOCUSING_SNAP_ON_FINISH) { 1543 mFocusRectangle.showStart(); 1544 } else if (mCameraState == FOCUS_SUCCESS) { 1545 mFocusRectangle.showSuccess(); 1546 } else if (mCameraState == FOCUS_FAIL) { 1547 mFocusRectangle.showFail(); 1548 } else if (mCameraState == IDLE && mFocusArea != null) { 1549 // Users touch on the preview and the rectangle indicates the metering area. 1550 // Either focus area is not supported or autoFocus call is not required. 1551 mFocusRectangle.showStart(); 1552 } else { 1553 mFocusRectangle.clear(); 1554 } 1555 } 1556 1557 // Preview area is touched. Handle touch focus. 1558 @Override 1559 public boolean onTouch(View v, MotionEvent e) { 1560 if (mPausing || !mFirstTimeInitialized || mCameraState == SNAPSHOT_IN_PROGRESS 1561 || mCameraState == FOCUSING_SNAP_ON_FINISH) { 1562 return false; 1563 } 1564 1565 // Do not trigger touch focus if popup window is opened. 1566 if (collapseCameraControls()) return false; 1567 1568 // Check if metering area or focus area is supported. 1569 boolean focusAreaSupported = (mParameters.getMaxNumFocusAreas() > 0 1570 && (mFocusMode.equals(Parameters.FOCUS_MODE_AUTO) || 1571 mFocusMode.equals(Parameters.FOCUS_MODE_MACRO) || 1572 mFocusMode.equals(Parameters.FOCUS_MODE_CONTINUOUS_VIDEO))); 1573 boolean meteringAreaSupported = (mParameters.getMaxNumMeteringAreas() > 0); 1574 if (!focusAreaSupported && !meteringAreaSupported) return false; 1575 1576 boolean callAutoFocusRequired = false; 1577 if (focusAreaSupported && 1578 (mFocusMode.equals(Parameters.FOCUS_MODE_AUTO) || 1579 mFocusMode.equals(Parameters.FOCUS_MODE_MACRO))) { 1580 callAutoFocusRequired = true; 1581 } 1582 1583 // Let users be able to cancel previous touch focus. 1584 if (callAutoFocusRequired && mFocusArea != null && e.getAction() == MotionEvent.ACTION_DOWN 1585 && (mCameraState == FOCUSING || mCameraState == FOCUS_SUCCESS || 1586 mCameraState == FOCUS_FAIL)) { 1587 cancelAutoFocus(); 1588 } 1589 1590 // Initialize variables. 1591 int x = Math.round(e.getX()); 1592 int y = Math.round(e.getY()); 1593 int focusWidth = mFocusRectangle.getWidth(); 1594 int focusHeight = mFocusRectangle.getHeight(); 1595 int previewWidth = mPreviewFrame.getWidth(); 1596 int previewHeight = mPreviewFrame.getHeight(); 1597 if (mFocusArea == null) { 1598 mFocusArea = new ArrayList<Area>(); 1599 mFocusArea.add(new Area(new Rect(), 1)); 1600 } 1601 1602 // Convert the coordinates to driver format. The actual focus area is two times bigger than 1603 // UI because a huge rectangle looks strange. 1604 int areaWidth = focusWidth * 2; 1605 int areaHeight = focusHeight * 2; 1606 int areaLeft = Util.clamp(x - areaWidth / 2, 0, previewWidth - areaWidth); 1607 int areaTop = Util.clamp(y - areaHeight / 2, 0, previewHeight - areaHeight); 1608 Rect rect = mFocusArea.get(0).rect; 1609 convertToFocusArea(areaLeft, areaTop, areaWidth, areaHeight, previewWidth, previewHeight, 1610 mFocusArea.get(0).rect); 1611 1612 // Use margin to set the focus rectangle to the touched area. 1613 RelativeLayout.LayoutParams p = 1614 (RelativeLayout.LayoutParams) mFocusRectangle.getLayoutParams(); 1615 int left = Util.clamp(x - focusWidth / 2, 0, previewWidth - focusWidth); 1616 int top = Util.clamp(y - focusHeight / 2, 0, previewHeight - focusHeight); 1617 p.setMargins(left, top, 0, 0); 1618 // Disable "center" rule because we no longer want to put it in the center. 1619 int[] rules = p.getRules(); 1620 rules[RelativeLayout.CENTER_IN_PARENT] = 0; 1621 mFocusRectangle.requestLayout(); 1622 1623 // Stop face detection because we want to specify focus and metering area. 1624 stopFaceDetection(); 1625 1626 // Set the focus area and metering area. 1627 setCameraParameters(UPDATE_PARAM_PREFERENCE); 1628 if (callAutoFocusRequired && e.getAction() == MotionEvent.ACTION_UP) { 1629 autoFocus(); 1630 } else { // Just show the rectangle in all other cases. 1631 updateFocusUI(); 1632 // Reset the metering area in 3 seconds. 1633 mHandler.removeMessages(RESET_TOUCH_FOCUS); 1634 mHandler.sendEmptyMessageDelayed(RESET_TOUCH_FOCUS, RESET_TOUCH_FOCUS_DELAY); 1635 } 1636 1637 return true; 1638 } 1639 1640 // Convert the touch point to the focus area in driver format. 1641 public static void convertToFocusArea(int left, int top, int focusWidth, int focusHeight, 1642 int previewWidth, int previewHeight, Rect rect) { 1643 rect.left = Math.round((float) left / previewWidth * 2000 - 1000); 1644 rect.top = Math.round((float) top / previewHeight * 2000 - 1000); 1645 rect.right = Math.round((float) (left + focusWidth) / previewWidth * 2000 - 1000); 1646 rect.bottom = Math.round((float) (top + focusHeight) / previewHeight * 2000 - 1000); 1647 } 1648 1649 void resetTouchFocus() { 1650 // Put focus rectangle to the center. 1651 RelativeLayout.LayoutParams p = 1652 (RelativeLayout.LayoutParams) mFocusRectangle.getLayoutParams(); 1653 int[] rules = p.getRules(); 1654 rules[RelativeLayout.CENTER_IN_PARENT] = RelativeLayout.TRUE; 1655 p.setMargins(0, 0, 0, 0); 1656 1657 mFocusArea = null; 1658 } 1659 1660 @Override 1661 public void onBackPressed() { 1662 if (!isCameraIdle()) { 1663 // ignore backs while we're taking a picture 1664 return; 1665 } else if (!collapseCameraControls()) { 1666 super.onBackPressed(); 1667 } 1668 } 1669 1670 @Override 1671 public boolean onKeyDown(int keyCode, KeyEvent event) { 1672 switch (keyCode) { 1673 case KeyEvent.KEYCODE_FOCUS: 1674 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1675 doFocus(true); 1676 } 1677 return true; 1678 case KeyEvent.KEYCODE_CAMERA: 1679 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1680 doSnap(); 1681 } 1682 return true; 1683 case KeyEvent.KEYCODE_DPAD_CENTER: 1684 // If we get a dpad center event without any focused view, move 1685 // the focus to the shutter button and press it. 1686 if (mFirstTimeInitialized && event.getRepeatCount() == 0) { 1687 // Start auto-focus immediately to reduce shutter lag. After 1688 // the shutter button gets the focus, doFocus() will be 1689 // called again but it is fine. 1690 if (collapseCameraControls()) return true; 1691 doFocus(true); 1692 if (mShutterButton.isInTouchMode()) { 1693 mShutterButton.requestFocusFromTouch(); 1694 } else { 1695 mShutterButton.requestFocus(); 1696 } 1697 mShutterButton.setPressed(true); 1698 } 1699 return true; 1700 } 1701 1702 return super.onKeyDown(keyCode, event); 1703 } 1704 1705 @Override 1706 public boolean onKeyUp(int keyCode, KeyEvent event) { 1707 switch (keyCode) { 1708 case KeyEvent.KEYCODE_FOCUS: 1709 if (mFirstTimeInitialized) { 1710 doFocus(false); 1711 } 1712 return true; 1713 } 1714 return super.onKeyUp(keyCode, event); 1715 } 1716 1717 private void doSnap() { 1718 if (collapseCameraControls()) return; 1719 1720 Log.v(TAG, "doSnap: mCameraState=" + mCameraState); 1721 // If the user has half-pressed the shutter and focus is completed, we 1722 // can take the photo right away. If the focus mode is infinity, we can 1723 // also take the photo. 1724 if (mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY) 1725 || mFocusMode.equals(Parameters.FOCUS_MODE_FIXED) 1726 || mFocusMode.equals(Parameters.FOCUS_MODE_EDOF) 1727 || (mCameraState == FOCUS_SUCCESS 1728 || mCameraState == FOCUS_FAIL)) { 1729 capture(); 1730 } else if (mCameraState == FOCUSING) { 1731 // Half pressing the shutter (i.e. the focus button event) will 1732 // already have requested AF for us, so just request capture on 1733 // focus here. 1734 mCameraState = FOCUSING_SNAP_ON_FINISH; 1735 } else if (mCameraState == IDLE) { 1736 // Focus key down event is dropped for some reasons. Just ignore. 1737 } 1738 } 1739 1740 private void doFocus(boolean pressed) { 1741 // Do the focus if the mode is not infinity. 1742 if (collapseCameraControls()) return; 1743 if (!(mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY) 1744 || mFocusMode.equals(Parameters.FOCUS_MODE_FIXED) 1745 || mFocusMode.equals(Parameters.FOCUS_MODE_EDOF))) { 1746 if (pressed) { // Focus key down. 1747 // Do not do focus if there is not enoguh storage. Do not focus 1748 // if touch focus has been triggered, that is, camera state is 1749 // FOCUS_SUCCESS or FOCUS_FAIL. 1750 if (canTakePicture() && mCameraState != FOCUS_SUCCESS 1751 && mCameraState != FOCUS_FAIL) { 1752 autoFocus(); 1753 } 1754 } else { // Focus key up. 1755 // User releases half-pressed focus key. 1756 if (mCameraState == FOCUSING || mCameraState == FOCUS_SUCCESS 1757 || mCameraState == FOCUS_FAIL) { 1758 cancelAutoFocus(); 1759 } 1760 } 1761 } 1762 } 1763 1764 public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { 1765 // Make sure we have a surface in the holder before proceeding. 1766 if (holder.getSurface() == null) { 1767 Log.d(TAG, "holder.getSurface() == null"); 1768 return; 1769 } 1770 1771 Log.v(TAG, "surfaceChanged. w=" + w + ". h=" + h); 1772 1773 // We need to save the holder for later use, even when the mCameraDevice 1774 // is null. This could happen if onResume() is invoked after this 1775 // function. 1776 mSurfaceHolder = holder; 1777 1778 // The mCameraDevice will be null if it fails to connect to the camera 1779 // hardware. In this case we will show a dialog and then finish the 1780 // activity, so it's OK to ignore it. 1781 if (mCameraDevice == null) return; 1782 1783 // Sometimes surfaceChanged is called after onPause or before onResume. 1784 // Ignore it. 1785 if (mPausing || isFinishing()) return; 1786 1787 // Set preview display if the surface is being created. Preview was 1788 // already started. Also restart the preview if display rotation has 1789 // changed. Sometimes this happens when the device is held in portrait 1790 // and camera app is opened. Rotation animation takes some time and 1791 // display rotation in onCreate may not be what we want. 1792 if (mCameraState != PREVIEW_STOPPED 1793 && (Util.getDisplayRotation(this) == mDisplayRotation) 1794 && holder.isCreating()) { 1795 // Set preview display if the surface is being created and preview 1796 // was already started. That means preview display was set to null 1797 // and we need to set it now. 1798 setPreviewDisplay(holder); 1799 } else { 1800 // 1. Restart the preview if the size of surface was changed. The 1801 // framework may not support changing preview display on the fly. 1802 // 2. Start the preview now if surface was destroyed and preview 1803 // stopped. 1804 startPreview(); 1805 } 1806 1807 // If first time initialization is not finished, send a message to do 1808 // it later. We want to finish surfaceChanged as soon as possible to let 1809 // user see preview first. 1810 if (!mFirstTimeInitialized) { 1811 mHandler.sendEmptyMessage(FIRST_TIME_INIT); 1812 } else { 1813 initializeSecondTime(); 1814 } 1815 } 1816 1817 public void surfaceCreated(SurfaceHolder holder) { 1818 } 1819 1820 public void surfaceDestroyed(SurfaceHolder holder) { 1821 stopPreview(); 1822 mSurfaceHolder = null; 1823 } 1824 1825 private void closeCamera() { 1826 if (mCameraDevice != null) { 1827 CameraHolder.instance().release(); 1828 mCameraDevice.setZoomChangeListener(null); 1829 mCameraDevice = null; 1830 mCameraState = PREVIEW_STOPPED; 1831 } 1832 } 1833 1834 private void setPreviewDisplay(SurfaceHolder holder) { 1835 try { 1836 mCameraDevice.setPreviewDisplay(holder); 1837 } catch (Throwable ex) { 1838 closeCamera(); 1839 throw new RuntimeException("setPreviewDisplay failed", ex); 1840 } 1841 } 1842 1843 private void startPreview() { 1844 if (mPausing || isFinishing()) return; 1845 1846 resetTouchFocus(); 1847 1848 mCameraDevice.setErrorCallback(mErrorCallback); 1849 1850 // If we're previewing already, stop the preview first (this will blank 1851 // the screen). 1852 if (mCameraState != PREVIEW_STOPPED) stopPreview(); 1853 1854 setPreviewDisplay(mSurfaceHolder); 1855 mDisplayRotation = Util.getDisplayRotation(this); 1856 mDisplayOrientation = Util.getDisplayOrientation(mDisplayRotation, mCameraId); 1857 mCameraDevice.setDisplayOrientation(mDisplayOrientation); 1858 if (mFaceView != null) { 1859 mFaceView.setDisplayOrientation(mDisplayOrientation); 1860 } 1861 setCameraParameters(UPDATE_PARAM_ALL); 1862 1863 try { 1864 Log.v(TAG, "startPreview"); 1865 mCameraDevice.startPreview(); 1866 } catch (Throwable ex) { 1867 closeCamera(); 1868 throw new RuntimeException("startPreview failed", ex); 1869 } 1870 mZoomState = ZOOM_STOPPED; 1871 mCameraState = IDLE; 1872 } 1873 1874 private void stopPreview() { 1875 if (mCameraDevice != null && mCameraState != PREVIEW_STOPPED) { 1876 Log.v(TAG, "stopPreview"); 1877 mCameraDevice.stopPreview(); 1878 } 1879 mCameraState = PREVIEW_STOPPED; 1880 // If auto focus was in progress, it would have been canceled. 1881 updateFocusUI(); 1882 } 1883 1884 private static boolean isSupported(String value, List<String> supported) { 1885 return supported == null ? false : supported.indexOf(value) >= 0; 1886 } 1887 1888 private void updateCameraParametersInitialize() { 1889 // Reset preview frame rate to the maximum because it may be lowered by 1890 // video camera application. 1891 List<Integer> frameRates = mParameters.getSupportedPreviewFrameRates(); 1892 if (frameRates != null) { 1893 Integer max = Collections.max(frameRates); 1894 mParameters.setPreviewFrameRate(max); 1895 } 1896 1897 mParameters.setRecordingHint(false); 1898 } 1899 1900 private void updateCameraParametersZoom() { 1901 // Set zoom. 1902 if (mParameters.isZoomSupported()) { 1903 mParameters.setZoom(mZoomValue); 1904 } 1905 } 1906 1907 private void updateCameraParametersPreference() { 1908 if (mParameters.getMaxNumFocusAreas() > 0) { 1909 mParameters.setFocusAreas(mFocusArea); 1910 Log.d(TAG, "Parameter focus areas=" + mParameters.get("focus-areas")); 1911 } 1912 1913 if (mParameters.getMaxNumMeteringAreas() > 0) { 1914 // Use the same area for focus and metering. 1915 mParameters.setMeteringAreas(mFocusArea); 1916 } 1917 1918 // Set picture size. 1919 String pictureSize = mPreferences.getString( 1920 CameraSettings.KEY_PICTURE_SIZE, null); 1921 if (pictureSize == null) { 1922 CameraSettings.initialCameraPictureSize(this, mParameters); 1923 } else { 1924 List<Size> supported = mParameters.getSupportedPictureSizes(); 1925 CameraSettings.setCameraPictureSize( 1926 pictureSize, supported, mParameters); 1927 } 1928 1929 // Set the preview frame aspect ratio according to the picture size. 1930 Size size = mParameters.getPictureSize(); 1931 PreviewFrameLayout frameLayout = 1932 (PreviewFrameLayout) findViewById(R.id.frame_layout); 1933 frameLayout.setAspectRatio((double) size.width / size.height); 1934 1935 // Set a preview size that is closest to the viewfinder height and has 1936 // the right aspect ratio. 1937 List<Size> sizes = mParameters.getSupportedPreviewSizes(); 1938 Size optimalSize = Util.getOptimalPreviewSize(this, 1939 sizes, (double) size.width / size.height); 1940 Size original = mParameters.getPreviewSize(); 1941 if (!original.equals(optimalSize)) { 1942 mParameters.setPreviewSize(optimalSize.width, optimalSize.height); 1943 1944 // Zoom related settings will be changed for different preview 1945 // sizes, so set and read the parameters to get lastest values 1946 mCameraDevice.setParameters(mParameters); 1947 mParameters = mCameraDevice.getParameters(); 1948 } 1949 Log.v(TAG, "Preview size is " + optimalSize.width + "x" + optimalSize.height); 1950 1951 // Since change scene mode may change supported values, 1952 // Set scene mode first, 1953 mSceneMode = mPreferences.getString( 1954 CameraSettings.KEY_SCENE_MODE, 1955 getString(R.string.pref_camera_scenemode_default)); 1956 if (isSupported(mSceneMode, mParameters.getSupportedSceneModes())) { 1957 if (!mParameters.getSceneMode().equals(mSceneMode)) { 1958 mParameters.setSceneMode(mSceneMode); 1959 mCameraDevice.setParameters(mParameters); 1960 1961 // Setting scene mode will change the settings of flash mode, 1962 // white balance, and focus mode. Here we read back the 1963 // parameters, so we can know those settings. 1964 mParameters = mCameraDevice.getParameters(); 1965 } 1966 } else { 1967 mSceneMode = mParameters.getSceneMode(); 1968 if (mSceneMode == null) { 1969 mSceneMode = Parameters.SCENE_MODE_AUTO; 1970 } 1971 } 1972 1973 // Set JPEG quality. 1974 int jpegQuality = CameraProfile.getJpegEncodingQualityParameter(mCameraId, 1975 CameraProfile.QUALITY_HIGH); 1976 mParameters.setJpegQuality(jpegQuality); 1977 1978 // For the following settings, we need to check if the settings are 1979 // still supported by latest driver, if not, ignore the settings. 1980 1981 // Set exposure compensation 1982 String exposure = mPreferences.getString( 1983 CameraSettings.KEY_EXPOSURE, 1984 getString(R.string.pref_exposure_default)); 1985 try { 1986 int value = Integer.parseInt(exposure); 1987 int max = mParameters.getMaxExposureCompensation(); 1988 int min = mParameters.getMinExposureCompensation(); 1989 if (value >= min && value <= max) { 1990 mParameters.setExposureCompensation(value); 1991 } else { 1992 Log.w(TAG, "invalid exposure range: " + exposure); 1993 } 1994 } catch (NumberFormatException e) { 1995 Log.w(TAG, "invalid exposure: " + exposure); 1996 } 1997 1998 if (Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) { 1999 // Set flash mode. 2000 String flashMode = mPreferences.getString( 2001 CameraSettings.KEY_FLASH_MODE, 2002 getString(R.string.pref_camera_flashmode_default)); 2003 List<String> supportedFlash = mParameters.getSupportedFlashModes(); 2004 if (isSupported(flashMode, supportedFlash)) { 2005 mParameters.setFlashMode(flashMode); 2006 } else { 2007 flashMode = mParameters.getFlashMode(); 2008 if (flashMode == null) { 2009 flashMode = getString( 2010 R.string.pref_camera_flashmode_no_flash); 2011 } 2012 } 2013 2014 // Set white balance parameter. 2015 String whiteBalance = mPreferences.getString( 2016 CameraSettings.KEY_WHITE_BALANCE, 2017 getString(R.string.pref_camera_whitebalance_default)); 2018 if (isSupported(whiteBalance, 2019 mParameters.getSupportedWhiteBalance())) { 2020 mParameters.setWhiteBalance(whiteBalance); 2021 } else { 2022 whiteBalance = mParameters.getWhiteBalance(); 2023 if (whiteBalance == null) { 2024 whiteBalance = Parameters.WHITE_BALANCE_AUTO; 2025 } 2026 } 2027 2028 // Set focus mode. 2029 mFocusMode = mPreferences.getString( 2030 CameraSettings.KEY_FOCUS_MODE, 2031 getString(R.string.pref_camera_focusmode_default)); 2032 if (isSupported(mFocusMode, mParameters.getSupportedFocusModes())) { 2033 mParameters.setFocusMode(mFocusMode); 2034 } else { 2035 mFocusMode = mParameters.getFocusMode(); 2036 if (mFocusMode == null) { 2037 mFocusMode = Parameters.FOCUS_MODE_AUTO; 2038 } 2039 } 2040 } else { 2041 mFocusMode = mParameters.getFocusMode(); 2042 } 2043 } 2044 2045 // We separate the parameters into several subsets, so we can update only 2046 // the subsets actually need updating. The PREFERENCE set needs extra 2047 // locking because the preference can be changed from GLThread as well. 2048 private void setCameraParameters(int updateSet) { 2049 mParameters = mCameraDevice.getParameters(); 2050 2051 if ((updateSet & UPDATE_PARAM_INITIALIZE) != 0) { 2052 updateCameraParametersInitialize(); 2053 } 2054 2055 if ((updateSet & UPDATE_PARAM_ZOOM) != 0) { 2056 updateCameraParametersZoom(); 2057 } 2058 2059 if ((updateSet & UPDATE_PARAM_PREFERENCE) != 0) { 2060 updateCameraParametersPreference(); 2061 } 2062 2063 mCameraDevice.setParameters(mParameters); 2064 } 2065 2066 // If the Camera is idle, update the parameters immediately, otherwise 2067 // accumulate them in mUpdateSet and update later. 2068 private void setCameraParametersWhenIdle(int additionalUpdateSet) { 2069 mUpdateSet |= additionalUpdateSet; 2070 if (mCameraDevice == null) { 2071 // We will update all the parameters when we open the device, so 2072 // we don't need to do anything now. 2073 mUpdateSet = 0; 2074 return; 2075 } else if (isCameraIdle()) { 2076 setCameraParameters(mUpdateSet); 2077 updateSceneModeUI(); 2078 mUpdateSet = 0; 2079 } else { 2080 if (!mHandler.hasMessages(SET_CAMERA_PARAMETERS_WHEN_IDLE)) { 2081 mHandler.sendEmptyMessageDelayed( 2082 SET_CAMERA_PARAMETERS_WHEN_IDLE, 1000); 2083 } 2084 } 2085 } 2086 2087 private void gotoGallery() { 2088 MenuHelper.gotoCameraImageGallery(this); 2089 } 2090 2091 private void startReceivingLocationUpdates() { 2092 if (mLocationManager != null) { 2093 try { 2094 mLocationManager.requestLocationUpdates( 2095 LocationManager.NETWORK_PROVIDER, 2096 1000, 2097 0F, 2098 mLocationListeners[1]); 2099 } catch (SecurityException ex) { 2100 Log.i(TAG, "fail to request location update, ignore", ex); 2101 } catch (IllegalArgumentException ex) { 2102 Log.d(TAG, "provider does not exist " + ex.getMessage()); 2103 } 2104 try { 2105 mLocationManager.requestLocationUpdates( 2106 LocationManager.GPS_PROVIDER, 2107 1000, 2108 0F, 2109 mLocationListeners[0]); 2110 showGpsOnScreenIndicator(false); 2111 } catch (SecurityException ex) { 2112 Log.i(TAG, "fail to request location update, ignore", ex); 2113 } catch (IllegalArgumentException ex) { 2114 Log.d(TAG, "provider does not exist " + ex.getMessage()); 2115 } 2116 Log.d(TAG, "startReceivingLocationUpdates"); 2117 } 2118 } 2119 2120 private void stopReceivingLocationUpdates() { 2121 if (mLocationManager != null) { 2122 for (int i = 0; i < mLocationListeners.length; i++) { 2123 try { 2124 mLocationManager.removeUpdates(mLocationListeners[i]); 2125 } catch (Exception ex) { 2126 Log.i(TAG, "fail to remove location listners, ignore", ex); 2127 } 2128 } 2129 Log.d(TAG, "stopReceivingLocationUpdates"); 2130 } 2131 hideGpsOnScreenIndicator(); 2132 } 2133 2134 private Location getCurrentLocation() { 2135 // go in best to worst order 2136 for (int i = 0; i < mLocationListeners.length; i++) { 2137 Location l = mLocationListeners[i].current(); 2138 if (l != null) return l; 2139 } 2140 Log.d(TAG, "No location received yet."); 2141 return null; 2142 } 2143 2144 private boolean isCameraIdle() { 2145 return mCameraState == IDLE || mCameraState == FOCUS_SUCCESS || mCameraState == FOCUS_FAIL; 2146 } 2147 2148 private boolean isImageCaptureIntent() { 2149 String action = getIntent().getAction(); 2150 return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)); 2151 } 2152 2153 private void setupCaptureParams() { 2154 Bundle myExtras = getIntent().getExtras(); 2155 if (myExtras != null) { 2156 mSaveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); 2157 mCropValue = myExtras.getString("crop"); 2158 } 2159 } 2160 2161 private void showPostCaptureAlert() { 2162 if (mIsImageCaptureIntent) { 2163 if (Util.isTabletUI()) { 2164 mShutterButton.setEnabled(false); 2165 } else { 2166 mShutterButton.setVisibility(View.GONE); 2167 } 2168 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2169 for (int id : pickIds) { 2170 View button = findViewById(id); 2171 ((View) button.getParent()).setVisibility(View.VISIBLE); 2172 } 2173 2174 // Remove the text of the cancel button 2175 View view = findViewById(R.id.btn_cancel); 2176 if (view instanceof Button) ((Button) view).setText(""); 2177 } 2178 } 2179 2180 private void hidePostCaptureAlert() { 2181 if (mIsImageCaptureIntent) { 2182 if (Util.isTabletUI()) { 2183 mShutterButton.setEnabled(true); 2184 } else { 2185 mShutterButton.setVisibility(View.VISIBLE); 2186 } 2187 int[] pickIds = {R.id.btn_retake, R.id.btn_done}; 2188 for (int id : pickIds) { 2189 View button = findViewById(id); 2190 ((View) button.getParent()).setVisibility(View.GONE); 2191 } 2192 enableCameraControls(true); 2193 2194 // Restore the text of the cancel button 2195 View view = findViewById(R.id.btn_cancel); 2196 if (view instanceof Button) { 2197 ((Button) view).setText(R.string.review_cancel); 2198 } 2199 } 2200 } 2201 2202 @Override 2203 public boolean onPrepareOptionsMenu(Menu menu) { 2204 super.onPrepareOptionsMenu(menu); 2205 // Only show the menu when camera is idle. 2206 for (int i = 0; i < menu.size(); i++) { 2207 menu.getItem(i).setVisible(isCameraIdle()); 2208 } 2209 2210 return true; 2211 } 2212 2213 @Override 2214 public boolean onCreateOptionsMenu(Menu menu) { 2215 super.onCreateOptionsMenu(menu); 2216 2217 if (mIsImageCaptureIntent) { 2218 // No options menu for attach mode. 2219 return false; 2220 } else { 2221 addBaseMenuItems(menu); 2222 } 2223 return true; 2224 } 2225 2226 private void addBaseMenuItems(Menu menu) { 2227 MenuHelper.addSwitchModeMenuItem(menu, ModePicker.MODE_VIDEO, new Runnable() { 2228 public void run() { 2229 switchToOtherMode(ModePicker.MODE_VIDEO); 2230 } 2231 }); 2232 MenuHelper.addSwitchModeMenuItem(menu, ModePicker.MODE_PANORAMA, new Runnable() { 2233 public void run() { 2234 switchToOtherMode(ModePicker.MODE_PANORAMA); 2235 } 2236 }); 2237 MenuItem gallery = menu.add(R.string.camera_gallery_photos_text) 2238 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 2239 public boolean onMenuItemClick(MenuItem item) { 2240 gotoGallery(); 2241 return true; 2242 } 2243 }); 2244 gallery.setIcon(android.R.drawable.ic_menu_gallery); 2245 mGalleryItems.add(gallery); 2246 2247 if (mNumberOfCameras > 1) { 2248 menu.add(R.string.switch_camera_id) 2249 .setOnMenuItemClickListener(new OnMenuItemClickListener() { 2250 public boolean onMenuItemClick(MenuItem item) { 2251 CameraSettings.writePreferredCameraId(mPreferences, 2252 ((mCameraId == mFrontCameraId) 2253 ? mBackCameraId : mFrontCameraId)); 2254 onSharedPreferenceChanged(); 2255 return true; 2256 } 2257 }).setIcon(android.R.drawable.ic_menu_camera); 2258 } 2259 } 2260 2261 private boolean switchToOtherMode(int mode) { 2262 if (isFinishing() || !isCameraIdle()) return false; 2263 MenuHelper.gotoMode(mode, Camera.this); 2264 mHandler.removeMessages(FIRST_TIME_INIT); 2265 finish(); 2266 return true; 2267 } 2268 2269 public boolean onModeChanged(int mode) { 2270 if (mode != ModePicker.MODE_CAMERA) { 2271 return switchToOtherMode(mode); 2272 } else { 2273 return true; 2274 } 2275 } 2276 2277 private void onSharedPreferenceChanged() { 2278 // ignore the events after "onPause()" 2279 if (mPausing) return; 2280 2281 boolean recordLocation; 2282 2283 recordLocation = RecordLocationPreference.get( 2284 mPreferences, getContentResolver()); 2285 2286 if (mRecordLocation != recordLocation) { 2287 mRecordLocation = recordLocation; 2288 if (mRecordLocation) { 2289 startReceivingLocationUpdates(); 2290 } else { 2291 stopReceivingLocationUpdates(); 2292 } 2293 } 2294 int cameraId = CameraSettings.readPreferredCameraId(mPreferences); 2295 if (mCameraId != cameraId) { 2296 // Restart the activity to have a crossfade animation. 2297 // TODO: Use SurfaceTexture to implement a better and faster 2298 // animation. 2299 if (mIsImageCaptureIntent) { 2300 // If the intent is camera capture, stay in camera capture mode. 2301 MenuHelper.gotoCameraMode(this, getIntent()); 2302 } else { 2303 MenuHelper.gotoCameraMode(this); 2304 } 2305 2306 finish(); 2307 } else { 2308 setCameraParametersWhenIdle(UPDATE_PARAM_PREFERENCE); 2309 } 2310 } 2311 2312 @Override 2313 public void onUserInteraction() { 2314 super.onUserInteraction(); 2315 keepScreenOnAwhile(); 2316 } 2317 2318 private void resetScreenOn() { 2319 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2320 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2321 } 2322 2323 private void keepScreenOnAwhile() { 2324 mHandler.removeMessages(CLEAR_SCREEN_DELAY); 2325 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 2326 mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); 2327 } 2328 2329 protected void onRestorePreferencesClicked() { 2330 if (mPausing) return; 2331 Runnable runnable = new Runnable() { 2332 public void run() { 2333 restorePreferences(); 2334 } 2335 }; 2336 MenuHelper.confirmAction(this, 2337 getString(R.string.confirm_restore_title), 2338 getString(R.string.confirm_restore_message), 2339 runnable); 2340 } 2341 2342 private void restorePreferences() { 2343 // Reset the zoom. Zoom value is not stored in preference. 2344 if (mParameters.isZoomSupported()) { 2345 mZoomValue = 0; 2346 setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM); 2347 if (mZoomPicker != null) mZoomPicker.setZoomIndex(0); 2348 } 2349 if (mIndicatorControl != null) { 2350 mIndicatorControl.dismissSettingPopup(); 2351 CameraSettings.restorePreferences(Camera.this, mPreferences, 2352 mParameters); 2353 initializeIndicatorControl(); 2354 onSharedPreferenceChanged(); 2355 } 2356 } 2357 2358 protected void onOverriddenPreferencesClicked() { 2359 if (mPausing) return; 2360 if (mNotSelectableToast == null) { 2361 String str = getResources().getString(R.string.not_selectable_in_scene_mode); 2362 mNotSelectableToast = Toast.makeText(Camera.this, str, Toast.LENGTH_SHORT); 2363 } 2364 mNotSelectableToast.show(); 2365 } 2366 2367 private void showSharePopup() { 2368 Uri uri = mThumbnail.getUri(); 2369 if (mSharePopup == null || !uri.equals(mSharePopup.getUri())) { 2370 mSharePopup = new SharePopup(this, uri, mThumbnail.getBitmap(), "image/jpeg", 2371 mOrientationCompensation, mThumbnailView); 2372 } 2373 mSharePopup.showAtLocation(mThumbnailView, Gravity.NO_GRAVITY, 0, 0); 2374 } 2375 2376 private class MyIndicatorControlListener implements IndicatorControl.Listener { 2377 public void onSharedPreferenceChanged() { 2378 Camera.this.onSharedPreferenceChanged(); 2379 } 2380 2381 public void onRestorePreferencesClicked() { 2382 Camera.this.onRestorePreferencesClicked(); 2383 } 2384 2385 public void onOverriddenPreferencesClicked() { 2386 Camera.this.onOverriddenPreferencesClicked(); 2387 } 2388 } 2389 2390 private class MyCameraPickerListener implements CameraPicker.Listener { 2391 public void onSharedPreferenceChanged() { 2392 Camera.this.onSharedPreferenceChanged(); 2393 } 2394 } 2395 2396 @Override 2397 public void onFaceDetection(Face[] faces, android.hardware.Camera camera) { 2398 mFaceView.setFaces(faces); 2399 } 2400 2401 private void showTapToFocusToastIfNeeded() { 2402 if (mParameters.getMaxNumFocusAreas() > 0 && 2403 mPreferences.getBoolean(CameraSettings.KEY_TAP_TO_FOCUS_PROMPT_SHOWN, true)) { 2404 // Show the toast. 2405 RotateLayout v = (RotateLayout) findViewById(R.id.tap_to_focus_prompt); 2406 v.setOrientation(mOrientationCompensation); 2407 v.startAnimation(AnimationUtils.loadAnimation(this, R.anim.on_screen_hint_enter)); 2408 v.setVisibility(View.VISIBLE); 2409 mHandler.sendEmptyMessageDelayed(DISMISS_TAP_TO_FOCUS_TOAST, 5000); 2410 // Clear the preference. 2411 Editor editor = mPreferences.edit(); 2412 editor.putBoolean(CameraSettings.KEY_TAP_TO_FOCUS_PROMPT_SHOWN, false); 2413 editor.apply(); 2414 } 2415 } 2416} 2417